Void Timer_enableCC26xx(Int id)
#endif
{
UInt gpt = INVALID_TIMER_ID;
/* map timer ID to the appropriate driverlib ID */
switch (id) {
case 0: gpt = PRCM_PERIPH_TIMER0;
break;
case 1: gpt = PRCM_PERIPH_TIMER1;
break;
case 2: gpt = PRCM_PERIPH_TIMER2;
break;
case 3: gpt = PRCM_PERIPH_TIMER3;
break;
default:
break;
}
/* if a valid GPT timer ID, enable the GPT ... */
if (gpt != INVALID_TIMER_ID) {
/* if it is not already on, turn on the PERIPH domain */
if (PRCMPowerDomainStatus(PRCM_DOMAIN_PERIPH) !=
PRCM_DOMAIN_POWER_ON) {
PRCMPowerDomainOn(PRCM_DOMAIN_PERIPH);
while (PRCMPowerDomainStatus(PRCM_DOMAIN_PERIPH) !=
PRCM_DOMAIN_POWER_ON) {};
}
/* now enable the GPT clocks */
PRCMPeripheralRunEnable(gpt);
PRCMPeripheralSleepEnable(gpt);
PRCMPeripheralDeepSleepEnable(gpt);
PRCMLoadSet();
while(!PRCMLoadGet()){};
}
}
/**
* Function documented in platform/uart.h
*/
otError otPlatUartEnable(void)
{
PRCMPowerDomainOn(PRCM_DOMAIN_SERIAL);
while (PRCMPowerDomainStatus(PRCM_DOMAIN_SERIAL) != PRCM_DOMAIN_POWER_ON);
PRCMPeripheralRunEnable(PRCM_PERIPH_UART0);
PRCMPeripheralSleepEnable(PRCM_PERIPH_UART0);
PRCMPeripheralDeepSleepEnable(PRCM_PERIPH_UART0);
PRCMLoadSet();
while (!PRCMLoadGet());
IOCPinTypeUart(UART0_BASE, IOID_2, IOID_3, IOID_UNUSED, IOID_UNUSED);
UARTConfigSetExpClk(UART0_BASE, SysCtrlClockGet(), 115200,
UART_CONFIG_WLEN_8 | UART_CONFIG_STOP_ONE | UART_CONFIG_PAR_NONE);
UARTIntEnable(UART0_BASE, UART_INT_RX | UART_INT_RT);
UARTIntRegister(UART0_BASE, UART0_intHandler);
UARTEnable(UART0_BASE);
return OT_ERROR_NONE;
}
/*
* ======== Power_shutdown ========
*/
Power_Status Power_shutdown(UArg arg)
{
Power_Status status = Power_EFAIL;
Bool exitNow = FALSE;
UInt32 constraints;
UInt hwiKey;
/* make sure shutdown request doesn't violate a constraint */
constraints = Power_getConstraintInfo();
if ((constraints & (Power_SD_DISALLOW)) != 0) {
status = Power_ECHANGE_NOT_ALLOWED;
}
if (status == Power_EFAIL) {
/* make sure Power is not still busy with a previous transition */
hwiKey = Hwi_disable();
if (Power_module->state == Power_ACTIVE) {
/* set new transition state to entering shutdown */
Power_module->state = Power_SHUTDOWN;
}
else {
exitNow = TRUE;
}
Hwi_restore(hwiKey);
if (exitNow == TRUE) {
status = Power_EBUSY;
}
else {
/* disable interrupts as start the shutdown sequence */
Hwi_disable();
/* signal all clients registered for pre-shutdown notification */
status = Power_notify(Power_ENTERING_SHUTDOWN);
/* check for any error */
if (status != Power_SOK) {
Power_module->state = Power_ACTIVE;
CPUcpsie();
return (status);
}
/* proceed with shutdown sequence ... */
/* switch to RCOSC_HF and RCOSC_LF */
OSCInterfaceEnable();
if(OSCClockSourceGet(OSC_SRC_CLK_HF) != OSC_RCOSC_HF) {
OSCClockSourceSet(OSC_SRC_CLK_HF | OSC_SRC_CLK_MF,
OSC_RCOSC_HF);
while(!OSCHfSourceReady());
OSCHfSourceSwitch();
}
OSCClockSourceSet(OSC_SRC_CLK_LF,OSC_RCOSC_LF);
while(OSCClockSourceGet(OSC_SRC_CLK_LF) != OSC_RCOSC_LF);
OSCInterfaceDisable();
/* make sure DMA and CRYTO clocks are off in deep-sleep */
PRCMPeripheralDeepSleepDisable(PRCM_PERIPH_CRYPTO);
PRCMPeripheralDeepSleepDisable(PRCM_PERIPH_UDMA);
PRCMLoadSet();
while(!PRCMLoadGet()){};
/* power OFF AUX and disconnect from bus */
AUXWUCPowerCtrl(AUX_WUC_POWER_OFF);
/* remove AUX force ON */
HWREG(AON_WUC_BASE + AON_WUC_O_AUXCTL) &=
~AON_WUC_AUXCTL_AUX_FORCE_ON;
/*
* reset AON event source IDs to avoid pending events powering
* on MCU/AUX
*/
HWREG(AON_EVENT_BASE + AON_EVENT_O_MCUWUSEL) = 0x3F3F3F3F;
HWREG(AON_EVENT_BASE + AON_EVENT_O_AUXWUSEL) = 0x003F3F3F;
/* sync AON */
HWREG(AON_RTC_BASE + AON_RTC_O_SYNC);
/*
* enable shutdown - this latches the IOs, so configuration of
* IOCFGx registers must be done prior to this
*/
AONWUCShutDownEnable();
/* sync AON */
HWREG(AON_RTC_BASE + AON_RTC_O_SYNC);
/* wait until AUX powered off */
while (AONWUCPowerStatusGet() & AONWUC_AUX_POWER_ON);
/* request to power off MCU when go to deep sleep */
PRCMMcuPowerOff();
/* turn off power domains inside MCU VD (BUS, FL_BUS, RFC, CPU) */
PRCMPowerDomainOff(PRCM_DOMAIN_RFCORE | PRCM_DOMAIN_SERIAL |
PRCM_DOMAIN_PERIPH | PRCM_DOMAIN_CPU | PRCM_DOMAIN_VIMS);
/* deep sleep to activate shutdown */
PRCMDeepSleep();
}
}
Power_module->state = Power_ACTIVE;
/* if get here failed to shutdown, return failure code */
return (Power_EFAIL);
}
/*
* ======== Power_setDependency ========
* Declare a dependency upon a resource.
*/
Bool Power_setDependency(Power_Resource resourceID)
{
UInt8 parent;
UInt8 count;
UInt32 id;
UInt key;
/* disable interrupts */
key = Hwi_disable();
/* read and increment reference count */
count = ti_sysbios_family_arm_cc26xx_Power_refCount[resourceID]++;
/* if resource was NOT activated previously ... */
if (count == 0) {
/* propagate set up the dependency tree ... */
/* check for a first parent */
parent = ti_sysbios_family_arm_cc26xx_Power_db[resourceID].flags
& PARENTMASK;
/* if first parent, make recursive call to set that dependency */
if (parent != NOPARENT) {
Power_setDependency(parent);
}
/* check for a second parent */
parent = ti_sysbios_family_arm_cc26xx_Power_db[resourceID].flags2
& PARENTMASK;
/* if second parent, make recursive call to set that dependency */
if (parent != NOPARENT) {
Power_setDependency(parent);
}
/* now activate this resource ... */
id = ti_sysbios_family_arm_cc26xx_Power_db[resourceID].driverlibID;
/* is resource a peripheral?... */
if (ti_sysbios_family_arm_cc26xx_Power_db[resourceID].flags & PERIPH) {
PRCMPeripheralRunEnable(id);
PRCMPeripheralSleepEnable(id);
PRCMPeripheralDeepSleepEnable(id);
PRCMLoadSet();
while(!PRCMLoadGet()){};
}
/* else, does resource require a special handler?... */
else if (ti_sysbios_family_arm_cc26xx_Power_db[resourceID].flags
& SPECIAL) {
/* call the special handler */
ti_sysbios_family_arm_cc26xx_Power_resourceHandlers[id](ENABLE);
}
/* else resource is a power domain */
else {
PRCMPowerDomainOn(id);
while (PRCMPowerDomainStatus(id) != PRCM_DOMAIN_POWER_ON) {};
}
}
/* re-enable interrupts */
Hwi_restore(key);
/* return the resource's activation status */
return (ti_sysbios_family_arm_cc26xx_Power_isDependencyActive(resourceID));
}
/*
* ======== Power_releaseDependency ========
* Release a previously declared dependency.
*/
Void Power_releaseDependency(Power_Resource resourceID)
{
UInt8 parent;
UInt8 count;
UInt32 id;
UInt key;
/* disable interrupts */
key = Hwi_disable();
/* read and decrement the reference count */
count = ti_sysbios_family_arm_cc26xx_Power_refCount[resourceID];
Assert_isTrue(count != 0, Power_A_tooManyCallsReleaseDependency);
ti_sysbios_family_arm_cc26xx_Power_refCount[resourceID] = count - 1;
/* if this was the last dependency being released.., */
if (count == 1) {
/* deactivate this resource ... */
id = ti_sysbios_family_arm_cc26xx_Power_db[resourceID].driverlibID;
/* is resource a peripheral?... */
if (ti_sysbios_family_arm_cc26xx_Power_db[resourceID].flags
& PERIPH) {
PRCMPeripheralRunDisable(id);
PRCMPeripheralSleepDisable(id);
PRCMPeripheralDeepSleepDisable(id);
PRCMLoadSet();
while(!PRCMLoadGet()){};
}
/* else, does resource require a special handler?... */
else if (ti_sysbios_family_arm_cc26xx_Power_db[resourceID].flags
& SPECIAL) {
/* call the special handler */
ti_sysbios_family_arm_cc26xx_Power_resourceHandlers[id](DISABLE);
}
/* else resource is a power domain */
else {
PRCMPowerDomainOff(id);
while (PRCMPowerDomainStatus(id) != PRCM_DOMAIN_POWER_OFF) {};
}
/* propagate release up the dependency tree ... */
/* check for a first parent */
parent = ti_sysbios_family_arm_cc26xx_Power_db[resourceID].flags
& PARENTMASK;
/* if 1st parent, make recursive call to release that dependency */
if (parent != NOPARENT) {
Power_releaseDependency(parent);
}
/* check for a second parent */
parent = ti_sysbios_family_arm_cc26xx_Power_db[resourceID].flags2
& PARENTMASK;
/* if 2nd parent, make recursive call to release that dependency */
if (parent != NOPARENT) {
Power_releaseDependency(parent);
}
}
/* re-enable interrupts */
Hwi_restore(key);
}